I've read these now and don't know if I recommend them, but these are the battles featured:

Quote:

Marvel Legacy #1 (Cover A Joe Quesada), $5.99
1 million B.C. Agamotto, Black Panther, Ghost Rider, Iron Fist, Odin, Phoenix, and Starbrand fight a lone Celestial. (For all the talk of these "1 million B.C. Avengers," they appear very little in the comic, are never called "Avengers," and who some of them are in this incarnation is not explained at all)
In the current day, Ghost Rider fights Star Brand.
Captain America (Sam Wilson), Iron Heart, and Jane Thor fight some frost giants.